ML Challenge Task Auditor
The middle of its range, $80/hr, is above the $55/hr median of the Agentic Tasks & RL Environments roles open now, whose typical pay runs $50–$120/hr. How that pay moves week by week is in our research on Agentic Tasks & RL Environments work.
Half of all Agentic Tasks & RL Environments roles come down within 9.3 days of being listed, and 33.6% are still up after four weeks. This one was posted 77 days ago.
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About the role
Evaluate the quality, correctness, and methodological rigor of applied machine-learning tasks used to train and evaluate a frontier AI lab's models. You'll assess experiment design, model-selection reasoning, and evaluation methodology - and provide clear, rubric-based written feedback.
Basic Qualifications
- 3+ years hands-on applied/experimental ML (experiment design, model selection, hyperparameter tuning, evaluation methodology)
- Strong grasp of data-quality rigor: leakage detection, metric gaming, and train/test/CV hygiene
- Proficiency with standard ML frameworks (PyTorch, TensorFlow, scikit-learn, XGBoost)
- Ability to critique ML claims against evidence and reproduce results
Preferred Qualifications
- Competition / benchmark experience (e.g., Kaggle)
- Graduate research or publication record in applied ML
- Prior task-grading or peer-review experience
Note: this role evaluates applied/experimental ML rigor - it is not an LLM-application-building or MLOps role.
Where you can work
This role is 100% remote, for applicants located in United States.
From Mercor's job posting, checked 14 Nov 2026.
About Mercor
Premium expert network: physicians, lawyers, engineers, PhDs.
How it pays: Weekly via Stripe (1099 contractors).
When it pays: Every Wednesday, for the week before. How often others pay
Interview: yes, for everyone it takes (AI Video Interview (plus role-specific assessments)). How the Mercor AI interview works
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